5  Summary of Functions

Packages

install.packages("")

library()

Arrays

array(data = , dim = )

Creating matrices

matrix(data = , nrow = , ncol = , byrow = FALSE)

Naming rows and columns

dimnames()

Calculating statistics

apply(X = , MARGIN = , FUN = )

Factors

factor(x = , levels = , labels = )

Data frames

data.frame(stringsAsFactors = , row.names = )

str()

attach()

detach()

data()

head()